Cationically curable oxetanyl-containing naphthalene and aromatic epoxy or oxetane compound

Abstract

A naphthalene derivative, binaphthalene derivative and biphenyl derivative, all having an oxetane group, capable of being cationically polymerized and a cationically curable compound containing a naphthalene derivative having an oxetanyl group and an aromatic compound having an epoxy group or an oxetanyl group.

What is claimed is:  
     
       1. A cationically curable compound comprising (A) a naphthalene derivative having an oxezanyl group and (B) an aromatic compound having an epoxy group or an aromatic compound, other than naphthalene, having an oxetanyl group. 
     
     
       2. A cationically curable compound of  claim 1 , wherein said naphthalene derivative (A) having an oxetanyl group is 3-alkyl-3-(1-naphthyvoxymethyl)oxetane or 3-(1-naphthyloxymethyl)oxetane and being represented by the formula (V):                    
       wherein R 11  represents a hydrogen atom or a C 1  to C 4  linear or branched alkyl group. 
     
     
       3. A cationically curable compound of  claim 1 , wherein said aromatic compound (B) is at least one compound selected from the group consisting of glycidyl ether polyfunctional epoxy compounds, phenol-based epoxy resins, and oxetane-modified novolak resins. 
     
     
       4. A cationically curable compound of  claim 2 , wherein the composition contains 20 to 95 parts by weight of the naphthalene derivative (A) and 5 to 80 parts by weight of the aromatic compound (B), both based upon 100 parts by weight of the total composition. 
     
     
       5. A cationically curable compound of  claim 4 , wherein 0.2 to 10 parts by weight, based upon 100 parts by weight of the composition, of an activation energy beam cationic polymerization initiator is further contained. 
     
     
       6. A cationically curable compound of  claim 5 , wherein the cationic polymerization initiator is at least one compound capable of releasing a strong acid due to the action of the activation energy beam. 
     
     
       7. A cationically curable compound of  claim 6 , wherein the cationic polymerization initiator is at least one compound selected from the group consisting of diaryl iodinium salts and triaryl sulfonium salts.